[Inclosure No. 19.]

HEADQUARTERS ARMY OF THE POTOMAC, December 15, 1862.

Major-General HOOKER,
Commanding Center Grand Division:

GENERAL: The commanding general directs that all the troops now occupying the right bank of the Rappahannock be withdrawn to-night, excepting General Butterfield's corps, which will occupy and hold Fredericksburg. Major-General Sumner has given orders that his command be removed, under your directions. The two divisions of your command now on the left will be ordered to rejoin you as soon as they cross the river.

Very respectfully, your obedient servant,

JNO. G. PARKE,

Chief of Staff.

[Inclosure No. 20.]

HEADQUARTERS FIFTH ARMY CORPS, December 16, 1862-12.30 a.m.

Major-General HOOKER,
Commanding Center Grand Division:

GENERAL: Upon my arrival here at our old camp-ground, I find a brigade of General Sigel's command encamped on a portion of General Sykes' old ground. Humphreys' and Griffin's divisions are getting in pretty near to their old places. As General Sigel ranks me, I cannot give him orders. I would respectfully ask further instructions that will remedy the difficulty.

I am, very respectfully, yours,

DANL. BUTTERFIELD,

Brigadier-General, Commanding Fifth Corps.

[Inclosure No. 21.]

HEADQUARTERS FIFTH ARMY CORPS, December 16, 1862-12.42 a.m.

Major-General HOOKER:

GENERAL: Since writing you, a few moments since, I learn that General Sykes' division has encamped on the ground near Falmouth where his troops were the day of the bombardment and of our movement on Fredericksburg. I have thought proper to advise you thus, as it may influence your decision or orders as to where I should assemble my corps. Will you please communicate instructions by bearer, and oblige.

Very respectfully, yours, &c.,
DANL. BUTTERFIELD,

Brigadier-General, Commanding.

[Inclosure No. 22.]

HEADQUARTERS ARMY OF THE POTOMAC, January 16, 1863.

Major-General SUMNER:

The commanding general directs that you furnish such batteries as may be required by Brigadier-General Hunt, chief of artillery; Brigadier-General Hays; Colonel Tompkins, First Rhode Island Artillery, and Captain De Russy. These batteries are to cover the respective places of crossing, and they may be recalled to join their commands